Elevator



(No Model.)

0. HAYS.

ELEVATOR. No. 311,489. Patented Feb. 3, 1885.

ATTORNEYS.

NITED rrrrns CHARLES \V. HAYS, OF ORANGE, NEWV JERSEY.

ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 311,489, dated February 3, 1885.

Application filed June 16, 1884.

T 0 all whom it may concern.-

Be it known that I, CHARLES W. HAYS, of Orange, Essex county, New Jersey, have invented a new and useful Improvement in Elevators, of which the following is a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a sectional elevation of a part of a building and of an elevator-carriage, showing my improvement applied to a sliding door, the door being shown open. Fig. 2 is a front elevation of a part of the same, the door being shown closed, and parts being broken away. Fig. 3 is a horizontal section of the same, taken through the line as m, Fig. 1. Fig. 4 is a sectional elevation of my improvement shown as applied to a swinging door, the door being shown closed. Fig. 5 is the same section as Fig. 4, but showing the door open, and Fig. 6 is a horizontal section of the same, taken through the line y :1 Fig. 4.

The object of this invention is to promote security in the use of elevators.

The invention consists in an elevator constructed with a carriage provided with a groove in its floor and a corresponding groove in the floor of the building to receive the arms of a T-bar attached to the well-door, whereby the said carriage will be locked when the well-door is open and released when the said door is closed. The groove in the carriage is made deep, and in its lower and upper parts, or either, are secured one or more springs, having a plate attached to their tops or bottoms, whereby the hoisting mechanism or other parts will be protected from a (No model.)

enter a groove, F, in the edge of the floor of the carriage O, and the other arm will enter a groove, G, in the edge of the floor of the building, so that the said carriage cannot move either up or down while the said door is open.

Then the door B is closed, the forward arm of the bar E projects into the space between the carriageOand the wall A of the building, as shown in Figs. 2 and 3, so as to leave the carriage 0 free to move up or down.

Then the improvement is to be applied to a swinging door, it is attached to the said door near its hinged edge and in such a position that the forward arm of the T- bar F Will bev swung forward into the groove F to lock the carriage when the said door is opened, as shown in Fig. 5, and will be swung back into the groove G to release the carriage when the door is closed. The groove F is made of su fficient depth to receive one or more springs, H, of metal or rubber, and the plate I, attached to the top of the said springs, as shown in the drawings, or to the bottom, according as the said spring is placed below or above the arm of the bar E. With this construction, should the hoisting mechanism be started to carry the carriage 0 before the door B is closed, the springs H will receive the impulse, and thus prevent the hoisting mechanism or other parts from being strained by the sudden ap plication of the power.

The improvement may be applied to the lower part of the door, as shown in the drawings, or to the upper part of the said door, as may be desired or convenient. WVith this construction it will be impossible for the door to be left open when the elevator-carriage moves away from the floor, thereby preventing accidents of all kinds from this cause.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In an elevator, the combinatiomwith the carriage, the well-door, and the floor, of a-T- bar secured to the said door and engaging with the carriage and the floor when the door is open, and disengaged from the carriage when the door is closed, substantially as herein shown and described.

2. In an elevator, the combination, with the carriage 0, provided with the groove F, the

floor of the building provided with the groove G, and the well-door B, of the T-bar E, secured attached to the well-door B and entering the to the said door with one arm in the groove of said groove, of one or more springs, H, and

the floor, and the other arm entering the the plate I, substantially as herein shown groove of the carriage when the door is and described, whereby the hoisting niechan- 15 5 opened, and withdrawing therefrom when the ism or other parts will be protected from a door is closed, substantially as herein shown sudden strain should the carriage be started and described, whereby the said carriage will before the well-door is 011 sed, as set forth.

be looked when the Well-door is open and re- CHARLES W. HAYS.

leased when closed, as set forth. Witnesses: 1o 3. In an elevator, the combination, with the J AMES T. GRAHAM,

carriage 0, having groove F, and the T-bar E, l O. SEDGWIOK. 

